5187493 has 4 divisors (see below), whose sum is σ = 5194368. Its totient is φ = 5180620.

The previous prime is 5187487. The next prime is 5187503. The reversal of 5187493 is 3947815.

5187493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5187493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5187293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143 + ... + 3868.

It is an arithmetic number, because the mean of its divisors is an integer number (1298592).

Almost surely, 2^5187493 is an apocalyptic number.

It is an amenable number.

5187493 is a deficient number, since it is larger than the sum of its proper divisors (6875).

5187493 is an equidigital number, since it uses as much as digits as its factorization.

5187493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874.

The product of its digits is 30240, while the sum is 37.

The square root of 5187493 is about 2277.6068580859. The cubic root of 5187493 is about 173.1088114514.

It can be divided in two parts, 5187 and 493, that multiplied together give a triangular number (2557191 = T₂₂₆₁).

The spelling of 5187493 in words is "five million, one hundred eighty-seven thousand, four hundred ninety-three".